72 citations · 386 across the 16 of their papers we have counts for
18 papers
Constraints on Dynamical Dark Energy Models from the Abundance of Massive Galaxies at High Redshifts
N. Menci, A. Grazian, M. Castellano +9
We compare the maximal abundance of massive systems predicted in different dynamical dark energy (DDE) models at high redshifts z = 4-7 with the measured abundance of the most mass…
Fundamental physics with the Hubble Frontier Fields: constraining Dark Matter models with the abundance of extremely faint and distant galaxies
Nicola Menci, Alexander Merle, Maximilian Totzauer +4
We show that the measured abundance of ultra-faint lensed galaxies at in the Hubble Frontier Fields (HFF) provides stringent constraints on the parameter space of i) D…
A Stringent Limit on the Warm Dark Matter Particle Masses from the Abundance of z=6 Galaxies in the Hubble Frontier Fields
N. Menci, A. Grazian, M. Castellano +1
We show that the recently measured UV luminosity functions of ultra-faint lensed galaxies at z= 6 in the Hubble Frontier Fields provide an unprecedented probe for the mass m_X of t…
Constraining the Warm Dark Matter Particle Mass through Ultra-Deep UV Luminosity Functions at z=2
N. Menci, N. G. Sanchez, M. Castellano +1
We compute the mass function of galactic dark matter halos for different values of the Warm Dark Matter (WDM) particle mass m_X and compare it with the abundance of ultra-faint gal…
Galaxy Phase-Space Density Data Preclude that Bose-Einstein Condensate be the Total Dark Matter
Hector J. de Vega, Norma G. Sanchez
Light scalars (as the axion) with mass m ~ 10^{-22} eV forming a Bose-Einstein condensate (BEC) exhibit a Jeans length in the kpc scale and were therefore proposed as dark matter (…
Warm dark matter primordial spectra and the onset of structure formation at redshift z
C. Destri, H. J. de Vega, N. G. Sanchez
Analytic formulas reproducing the warm dark matter (WDM) primordial spectra are obtained for WDM particles decoupling in and out of thermal equilibrium which provide the initial da…
Towards the Chalonge Meudon Workshop 2013. Highlights and Conclusions of the Chalonge Meudon workshop 2012: warm dark matter galaxy formation in agreement with observations
P. L. Biermann, H. J. de Vega, N. G. Sanchez
Warm Dark Matter(WDM), considerably clarifies and simplifies galaxies and galaxy formation in agreement with observations. WDM essentially works, naturally reproducing the astronom…
Dark matter in galaxies: the dark matter particle mass is about 7 keV
H. J. de Vega, N. G. Sanchez
Warm dark matter (WDM) means DM particles with mass m in the keV scale. For large scales, (structures beyond ~ 100 kpc) WDM and CDM yield identical results which agree with observa…
Towards the Chalonge 16th Paris Cosmology Colloquium 2012: Highlights and Conclusions of the Chalonge 15th Paris Cosmology Colloquium 2011
H. J. de Vega, M. C. Falvella, N. G. Sanchez
The Chalonge 15th Paris Cosmology Colloquium 2011 was held on 20-22 July in the historic Paris Observatory's Perrault building, in the Chalonge School spirit combining real cosmolo…
Cosmological evolution of warm dark matter fluctuations II: Solution from small to large scales and keV sterile neutrinos
H. J. de Vega, N. G. Sanchez
We solve the cosmological evolution of warm dark matter (WDM) density fluctuations with the Volterra integral equations of paper I. In the absence of neutrinos, the anisotropic str…
Cosmological evolution of warm dark matter fluctuations I: Efficient computational framework with Volterra integral equations
H. J. de Vega, N. G. Sanchez
We study the complete cosmological evolution of dark matter (DM) density fluctuations for DM particles that decoupled being ultrarelativistic during the radiation dominated era whi…
Role of Sterile Neutrino Warm Dark Matter in Rhenium and Tritium Beta Decays
H. J. de Vega, O. Moreno, E. Moya de Guerra +2
Sterile neutrinos with mass in the range of one to a few keV are important as extensions of the Standard Model of particle physics and are serious dark matter (DM) candidates. This…
Highlights and Conclusions of the Chalonge 14th Paris Cosmology Colloquium 2010: `The Standard Model of the Universe: Theory and Observations'
H. J. de Vega, M. C. Falvella, N. G. Sanchez
The Chalonge 14th Paris Cosmology Colloquium was held on 22-24 July 2010 in Paris Observatory on the Standard Model of the Universe: News from WMAP7, BICEP, QUAD, SPT, AMI, ACT, Pl…
Highlights and Conclusions of the Chalonge Meudon Workshop Dark Matter in the Universe
H. J. de Vega, N. G. Sanchez
The CIAS Chalonge Workshop `Dark Matter in the Universe and Universal Properties of Galaxies: Theory and Observations', was held at the Meudon Ch^ateau of Observatoire de Paris on…
The mass of the dark matter particle from theory and observations
H. J. de Vega, P. Salucci, N. G. Sanchez
We combine observed properties of galaxies as the core density and radius with the theoretical linear evolution of density fluctuations computed from first principles since the end…
Forecast for the Planck precision on the tensor to scalar ratio and other cosmological parameters
C. Burigana, C. Destri, H. J. de Vega +4
The Planck satellite is right now measuring with unprecedented accuracy the primary Background CMB anisotropies. The Standard Model of the Universe (including inflation) provides t…
Constant surface gravity and density profile of dark matter
H. J. de Vega, N. G. Sanchez
Cumulative observational evidence confirm that the surface gravity of dark matter (DM) halo mu_{0 D} = r_0 rho_0 where r_0 and rho_0 are the halo core radius and central density, r…
Dark Energy is the Cosmological Quantum Vacuum Energy of Light Particles-The Axion and the Lightest Neutrino
Hector J. de Vega, Norma G. Sanchez
We uncover the general mechanism producing the dark energy(DE). This is only based on well known quantum physics and cosmology. We show that the observed DE originates from the cos…